Effects of hard particles on friction coefficients and particle embedment in brake system during hard braking
The effects of hard particles on the friction coefficients and particle embedment during hard braking were investigated. Silica sands grit of the size between 180 to 355 µm were used during the experiments. The results were compared to the results obtained without the grit particles present in order...
| Main Authors: | , , |
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| Format: | Conference Paper |
| Published: |
2012
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| Online Access: | http://hdl.handle.net/20.500.11937/5826 |
| _version_ | 1848744904392441856 |
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| author | Abdul Hamid, M. Stachowiak, Gwidon Syahrullail, S. |
| author_facet | Abdul Hamid, M. Stachowiak, Gwidon Syahrullail, S. |
| author_sort | Abdul Hamid, M. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | The effects of hard particles on the friction coefficients and particle embedment during hard braking were investigated. Silica sands grit of the size between 180 to 355 µm were used during the experiments. The results were compared to the results obtained without the grit particles present in order to determine the change in friction coefficient, the fluctuation of frictional oscillation amplitude, and the percentage of particle embedment. Different sliding speeds were applied to investigate the relationship between particle embedment with friction coefficient and friction oscillation amplitude. Presence of hard particles of different grit size is found to significantly affect the friction coefficient and standard deviation of friction oscillation amplitude values. The friction coefficient and standard deviation values of friction oscillation amplitude increase with particle embedment due to the rapid changes of the effective contact area and the abrasion mode operating in the gap interface. Also, particle embedment tends to increase the disc surface roughness and influence the stopping time of the disc. |
| first_indexed | 2025-11-14T06:08:52Z |
| format | Conference Paper |
| id | curtin-20.500.11937-5826 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T06:08:52Z |
| publishDate | 2012 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-58262017-09-13T14:44:37Z Effects of hard particles on friction coefficients and particle embedment in brake system during hard braking Abdul Hamid, M. Stachowiak, Gwidon Syahrullail, S. The effects of hard particles on the friction coefficients and particle embedment during hard braking were investigated. Silica sands grit of the size between 180 to 355 µm were used during the experiments. The results were compared to the results obtained without the grit particles present in order to determine the change in friction coefficient, the fluctuation of frictional oscillation amplitude, and the percentage of particle embedment. Different sliding speeds were applied to investigate the relationship between particle embedment with friction coefficient and friction oscillation amplitude. Presence of hard particles of different grit size is found to significantly affect the friction coefficient and standard deviation of friction oscillation amplitude values. The friction coefficient and standard deviation values of friction oscillation amplitude increase with particle embedment due to the rapid changes of the effective contact area and the abrasion mode operating in the gap interface. Also, particle embedment tends to increase the disc surface roughness and influence the stopping time of the disc. 2012 Conference Paper http://hdl.handle.net/20.500.11937/5826 10.1063/1.4704303 restricted |
| spellingShingle | Abdul Hamid, M. Stachowiak, Gwidon Syahrullail, S. Effects of hard particles on friction coefficients and particle embedment in brake system during hard braking |
| title | Effects of hard particles on friction coefficients and particle embedment in brake system during hard braking |
| title_full | Effects of hard particles on friction coefficients and particle embedment in brake system during hard braking |
| title_fullStr | Effects of hard particles on friction coefficients and particle embedment in brake system during hard braking |
| title_full_unstemmed | Effects of hard particles on friction coefficients and particle embedment in brake system during hard braking |
| title_short | Effects of hard particles on friction coefficients and particle embedment in brake system during hard braking |
| title_sort | effects of hard particles on friction coefficients and particle embedment in brake system during hard braking |
| url | http://hdl.handle.net/20.500.11937/5826 |